Controlled exhaust gas recirculation
Patent
·
OSTI ID:7330942
A device is described to divert engine exhaust gases around a catalytic converter when the exhaust gases are too cool to support catalytic combustion or treatment of objectionable pollutants such as nitrogen oxides, carbon monoxide, and unburned hydrocarbons. The diverted gases are delivered to the engine's combustion air intake system for recycle in the engine. At normal operating temperatures (after initial warm-up) the diverter line is closed so that all the exhaust gases are directed through the catalytic converter.
- Assignee:
- Secretary of the Army
- Patent Number(s):
- US 3975904
- OSTI ID:
- 7330942
- Country of Publication:
- United States
- Language:
- English
Similar Records
Internal combustion engine exhaust emission control
Exhaust gas recirculation system
Forced air control valve for exhaust system of internal combustion engine
Patent
·
Tue Oct 12 00:00:00 EDT 1976
·
OSTI ID:7131892
Exhaust gas recirculation system
Patent
·
Mon Nov 01 23:00:00 EST 1982
·
OSTI ID:6464918
Forced air control valve for exhaust system of internal combustion engine
Patent
·
Mon Dec 17 23:00:00 EST 1979
·
OSTI ID:5419781
Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330701* -- Emission Control-- Nitrogen Oxides
330702 -- Emission Control-- Carbon Monoxide
330704 -- Emission Control-- Hydrocarbons
AUTOMOBILES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYTIC CONVERTERS
CHALCOGENIDES
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLOW REGULATORS
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OPERATION
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL EQUIPMENT
TEMPERATURE DEPENDENCE
VALVES
VEHICLES
330701* -- Emission Control-- Nitrogen Oxides
330702 -- Emission Control-- Carbon Monoxide
330704 -- Emission Control-- Hydrocarbons
AUTOMOBILES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYTIC CONVERTERS
CHALCOGENIDES
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLOW REGULATORS
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OPERATION
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL EQUIPMENT
TEMPERATURE DEPENDENCE
VALVES
VEHICLES